Angular 21 Features (20/3/2026)

Angular 21 Features

🚀 Angular 21 Features with Examples

1. Signal State Management

Simple reactive state without RxJS.

import { signal } from '@angular/core'; count = signal(0); increment() { this.count.update(v => v + 1); }
graph LR A[User Click] --> B[Signal Update] B --> C[UI Auto Update]

2. Zoneless Change Detection

No zone.js required → faster performance.

flowchart TD A[User Action] --> B[Signal Change] B --> C[Component Updates]

3. Signal Forms

Modern reactive forms using signals.

name = signal(''); updateName(val) { this.name.set(val); }
graph TD Input --> Signal --> UI

4. Computed Signals

price = signal(100); tax = computed(() => this.price() * 0.1);
graph LR Price --> Compute --> Tax

5. Standalone Components

@Component({ standalone: true, selector: 'app-test', template: `Hello Angular` })
graph TD App --> Component

6. Faster Testing (Vitest)

graph LR Test --> Run --> FastResult

7. Angular Aria (Accessibility)

graph TD UI --> Accessible --> User

8. AI Developer Tools

graph LR Dev --> AI --> Code Suggestion

9. HttpClient Default

this.http.get('/api/data').subscribe();
graph LR App --> API --> Response

10. Faster Builds

graph LR Code --> Build --> Optimized App

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